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A. W. DARRE. MACHINE FOR CUTTING CARDBOARD OBLIQUELY.

No. 589,075. Patented Aug. 31,1897

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(No Model.) 3 Sheets-Sheet 2.

A. W. DARRE.

MACHINE FOB. CUTTING CARDBOARD OBLIQUELY. No. 589,075. Patented Aug. 311897.

jilCcZ "(N0 Model.) 3 Sheets-Sheet 3.

A. W. DARRE. I MACHINE FOR CUTTING CARDBOARD OBLIQUELY. No. 589,075.Patented Aug. 31,1897.

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UNITED STATES PATENT FFICE.

ANTON WALDEMAR DARRE'OF COPENHAGEN, DENMARK, ASSTGNOR TO CARL MORTENSEN,OF SAME PLACE.

MACHINE FOR CUTTING CARDBOARD OBI-.IQUELY.

SPECIFICATION forming part of Letters Patent No. 589,075, dated August31, 1897.

Application filed A il 15,1895. Serial No. 545,812. (No model.)

To all whom, it may concern:

Be it known that I, ANTON. WALDEMAR DARRE, a subject of the King ofDenmark, residing at Oopenhagen,'in the Kingdomrof Denmark, haveinvented certain new and useful Improvements in Machines for Cuttingalso unhealthy, and consequently costly, it

will be of considerable advantage if it can be effected by the aid ofmachinery. The present invention embraces a machine for this purpose,this being so constructed that the cardboards, fixed in a press, arebrought successively against a knife reciprocating at right angles tothe direction in which the press travels and which, during its forwardmove ment, cuts the edges of the cardboards on the slant and returns outof contact therewith.

In the annexed drawings, Figure 1 is a plan, Fig. 2 a side sectionalelevation, and Fig. 3 an end sectional elevation, of a complete machine;Fig. 4, a vertical section of the knifeholder 3 Figs. 5 and 6, aperspective view and side elevation, respectively, of the knockingon-endbox; Figs. 7 and S, a perspective View and side elevation, respectively,of the cardpress; and Fig. 9, a front elevation of the knife-holder. I v

The machine consists of two checks at, on which slides a carriage m,having means by which the clamp can be fastened. Extending across thecheeks at one end are the slides 19, in which slides the knife-holder.holder is connected to the eccentric disk ct by a rod 0, so that it isreciprocated when the disk is revolved.

The knife-holderb, Figs. 1 3, 4, and 9, con-- sists of a block I),moving in the slide 1)., and to which is secured the sliding piece b insuch a manner that it may be raised or lowered relatively to the block bby means of the regulating-screw j, which engages with a nut in thesliding piece. A disk 6 is pivoted Said knife-.

upper end provided with an additional piece The boltg hasa verticalrecess g for the knife d, which is held in this recess against the'frontsurface of the disk 6 by means of ascrew g. The position of thedisk 6, and consequently of the parts attached to it, in relation to thefront surface of the sliding piece can be varied by means'of a screw fin such a manner that the knife can be placed in a more or less slantingposition.

As above mentioned, the knife-holder Z) reciprocates in the slide Z). Atthe end of the forward movement the foremost hook of the movable plateK, which is mounted on the top of the sliding piece 5 strikes against aprojection Z, fixed on the machine-frame, so that said plate is drivenback. This movement turns the small lever or pin it, one. end

of which extends into a recess in the plate K- and which is pivoted inh,so causing the hook 7b, which is connected with the lever h, to engagewith a recess in the piece 7. on the disk 6 and revolve the latter,thereby raising the knife-edge, which consequently, during the returnstroke, is then held free of the card-v boards. By this means thejamming of the cuttings between the knife and the cardboards isprevented. The other end of the piece 2' is connected to a springd,which normally holds the piece against the adj usting-screw 01 Thefriction between the plate K and the sliding piece 5 is, however, sogreat thatthe spring cannot move back the disk e when itis turnedbackward by the lever h.

In the backward movement of the knifeholder the hindermost edge of theplate K pushes against another projection Z, which moves the plate Kforward again, causing the lever 7t to cease from drawing in theprojection 2', and then the spring d brings the disk 6 and the knife dinto position for cutting.

The sliding carriage m, sliding upon the cheeks n, is worked in thefollowing manner: The machine is worked by means of belt and pulleys orby a hand-wheel fixed at the end of the axis 0. On the axis 0 is fixed acollar or box 1), provided with a cam p, which bears against a roller 0on the upper end of a rod g. This rod has also in its upper end anelongated hole for the shaft and is held against the end of the box bymeans of a collar 0, fixed to the shaft 0. The lower end of the rod q ishinged to a lever q, pivoted on the shaft of the wheel 8. \Vhen theshaft 0 is rotated, the cam 13 will reciprocate the rod q, and therebyoscillate the lever q, so that the pawl r on the lever, acting upon thetoothed wheel .9, turns this wheel around, while at the same timeanother toothed wheel .9, placed on the same axis as s, engages with atoothed bar on the upper edge of the sliding bar. In order to preventthe sliding barfrom suddenly backing from some cause or other, anotherpawl a" is provided, which by engaging with the wheel 3 stops an yretrograde movement.

If it is required to bring the sliding bar back again after its forwardmovement, this is done in the following manner: By turning thehand-lever 11 the escape-lever u is set in motion and the two pawls rand a" are disengaged from the wheel .9 by means of the pins 0: and st,fixed to the lever u. The escapelever 11. is an angular lever fixed inone end to the axis of the ha-nd-levert and near its other end pivotedon the axis of the wheels. The hand-wheel t is then turned, and thetoothed wheel 1/, Fig. 3, engaging with'the rack placed on the lowerside of the sliding carriage, is put in motion and the sliding carriagedrawn back.

The clamp placed between the sides of the sliding carriage, (see Figs. 1and 2,) in which the card-press, Figs. 7 and 8,is placed during thecutting operation, consists of a plate it, which at the top can turn inthe sliding carriage m upon two pivots r, Fig. 1, and leaves a marginfor the hook of the press. Besides this it is provided on the under partwith two upright arms r, bet-ween which is placed a bolt F to which ispivoted the frame 10 and around which it can turn. At the upper part ofthe frame it are fixed two bolts to, one on each side. These passthrough two holes at the back of the plate r and are here united with across-bar w", in which is the boss for the han d-screw a, which actsagainst the plate 1'. iy means of this hand-screw it; the distancebetween the plate 2: and the frame to can be regulated.

Behind the plate I there is a second frame z, turning on a pin .2",carried by the carriage 172, (see Fig. 2,) which is at its under partprovidcd with two knobs .2, resting against the plate r. This frame hasat its top the'boss for the screw g which likewise acts against theplate a, which by turning the screw 1 can be raised or lowered, therebyraising or lowering the frame 11'.

The card board-press in cutting works upon the projecting edge of theplate 1:, Figs. 7 and S, and it is firmly screwed between the frame 10and the plate r by the hand-screw 0:. Then careful examination must bemade as to whether the cutting-surface lies exactly hori zontal, andthis is done by moving the frame on, which moves between a pair ofbrackets on, fitted above the carriage m. Over these brackets, ifnecessary, the frame, together with the press, may be raised or loweredsomewhat by turning the screw 1 and then the cutting may proceed.

The cardboard-press shown in Fig. 7 in side elevation and in Fig. 8 inplan, in which the cardboards are put during the cutting, consists of abottom 1, two side pieces 2, slanting toward the front, and a plate 3put on the top between these, which can turn upon a pin t, pivoted inthe side pieces, and which plate is fastened by two bolts 5, which passthrough holes in the side pieces. By turning the nuts of these bolts,for which nuts there are cavities in the bottom of the side pieces, theplate 3 is turned downward, so that the cardboards placed between thisplate and the bottom are pressed firmly together. There are at thebottom two hooks 0, by means of which the press fastens onto the salientedge of the plate 4;.

In order that the cutting may be effected carefully, it is of importancethat the front edges of all the cardboards should lie evenly and level.In order to attain this, a levelingbox is used, (shown in Fig. 5 insideeleva tion and Fig. 6 in plan,) consisting of a bot tom 7, uponwhich are put guide-pieces Sin a slanting position, and a side piece 0.Into this box is placed the cardboard-presses shown in the drawings,there being in the bottom and side piece of the box the necessary placescut out for the projecting portions. The front edge of the cardboards ispressed firmly against the slanting pieces and then screwed down by thebolts 5.

IVhat I desire to claim and secure by Letters Patent is- 1. In machinesfor beveling the edges of cardboards a reciprocatingvertically-adjustable knife-holder in which the knife is fixed,consisting of the slide a revolving disk c with the top piece 2', anadjustable disk 0, lever h with the hook h engaging with the piece 1}and the sliding plate 7c in combination with projections land l on themachine-frame, substantially as set forth.

2. In machines for beveling the edges of cardboards the combination of asliding carriage consisting of the plate 1;, arms 1;, bolt 1;, frame 10,bolts 20 passing through the plate '1: and united with a cross-bar 10',having nut for the hand-screw as, another frame turning on the pivot .2,knobs z, and screw 1 by means of which clamp card-presses of varioussizes can be inserted in the cutting-machine; substantially as setforth.

In testimony whereof I affix my signature in presence of two witnesses.

ANTON \VALDEMAR DARRI Z.

\Vitnesses:

CHR. LARSEN, KRISTIAN NIELSEN.

